世數 [－数]

Jyutping sai3 sou3
Pinyin shì shù

Definitions (Wiktionary)
  1. noun, literary
    years to live; individual's allotted lifespan
    (syn.) 壽數, 寿数
  2. noun, literary
    number of generations
  3. noun, literary
    number of reigns
  4. noun, literary
    lineage seniority; bloodline hierarchy